Leo and Me (1978)

Leo (Brent Carver) was a carefree, hard-living Italian adventurer who had won a brand new yacht in a pokergame. He has also picked up his orphaned nephew Jamie (Michael J. Fox) to live with him. Leo and Jamie live on the yacht moored in the harbour. Leo's charm and good luck guided him through tricky but humorous situations and his young friend adept mind helped the pair get out of trouble.